html/c_api/levtr_8h_source.html

#ifndef DBALLE_DB_V7_LEVTR_H

#define DBALLE_DB_V7_LEVTR_H


#include <cstdio>

#include <dballe/core/defs.h>

#include <dballe/db/v7/cache.h>

#include <dballe/db/v7/fwd.h>

#include <dballe/msg/fwd.h>

#include <functional>

#include <memory>

#include <set>


namespace dballe {

namespace db {

namespace v7 {


struct LevTr

{

protected:

    v7::Transaction& tr;

    LevTrCache cache;

    virtual void

    _dump(std::function<void(int, const Level&, const Trange&)> out) = 0;


public:

    LevTr(v7::Transaction& tr);

    virtual ~LevTr();


    void clear_cache();


    virtual void prefetch_ids(Tracer<>& trc, const std::set<int>& ids) = 0;


    impl::msg::Context* to_msg(Tracer<>& trc, int id, impl::Message& msg);


    const LevTrEntry& lookup_cache(int id);


    virtual const LevTrEntry* lookup_id(Tracer<>& trc, int id) = 0;


    virtual int obtain_id(Tracer<>& trc, const LevTrEntry& desc) = 0;


    void dump(FILE* out);

};


} // namespace v7

} // namespace db

} // namespace dballe

#endif

dballe::db::v7::Tracer
Smart pointer for trace::Step objects, which calls done() when going out of scope.
Definition db/v7/fwd.h:45

dballe::impl::Message
Storage for related physical data.
Definition msg.h:134

dballe::impl::msg::Context
Store an array of physical data all on the same level.
Definition context.h:24

defs.h
Common definitions.

dballe::Level
Vertical level or layer.
Definition types.h:625

dballe::Trange
Information on how a value has been sampled or computed with regards to time.
Definition types.h:689

dballe::db::v7::LevTrCache
Definition cache.h:53

dballe::db::v7::LevTrEntry
Definition cache.h:15

dballe::db::v7::LevTr::lookup_cache
const LevTrEntry & lookup_cache(int id)
Lookup a LevTr entry from the cache, throwing an exception if it is not found.

dballe::db::v7::LevTr::lookup_id
virtual const LevTrEntry * lookup_id(Tracer<> &trc, int id)=0
Look up a LevTr from the database given its ID.

dballe::db::v7::LevTr::to_msg
impl::msg::Context * to_msg(Tracer<> &trc, int id, impl::Message &msg)
Get/create a Context in the Msg for this level/timerange.

dballe::db::v7::LevTr::obtain_id
virtual int obtain_id(Tracer<> &trc, const LevTrEntry &desc)=0
Look up a LevTr from the database given its description.

dballe::db::v7::LevTr::dump
void dump(FILE *out)
Dump the entire contents of the table to an output stream.

dballe::db::v7::LevTr::clear_cache
void clear_cache()
Invalidate the LevTrEntry cache.

dballe::db::v7::LevTr::prefetch_ids
virtual void prefetch_ids(Tracer<> &trc, const std::set< int > &ids)=0
Given a set of IDs, load LevTr information for them and add it to the cache.

dballe::db::v7::Transaction
Definition transaction.h:16